Watchcase



R. J. KRABBE nfenusn Filed Jn, 26, 1925 s x .1f ff Patented June 23, 1925.

' UNITED STATES PATENT OFFICE.. g

ROY JOHN KRABBE, or ELGIN, ILLINOIS, AssIeNOIt l'IO ILLINOIS WATCH cAsn con- PANY, OF ELGIN, ILLINOIS, A CORPORATION or ILLINOIS..Y

wATOHcAsI-I.

Application filed January To all whom, t may concern: v i

Be itv known that I, ROY J. KRABBE, a citizen of the United States, residing at Elgin, county of Kane, vand State of Illinois. have invented certain newand usefulfImprovements in Watchcases, of which the following is a specification.

This invention which relates to watch cases is concerned particularly with a mounting for a movement which is appreciably less in size than the case in which it is to be accommodated. In ythis. invention I have aimed also to utilize for this purpose means which are extremely simple in character and readily accessible for securing the movement in place. A further object consists in assembling in unitary relation with the movement a mounting ring, the movement and its ring serving to dispense with any necessity for removal of the hands, dial, etc., preliminaryy to insertion in or withdrawal of the movement from the case.

An exemplification of this invention in its preferred form is set forth in the accompanying drawing wherein Figure 1 is avertical section taken centrally through the case, the movement being shown in elevation; and

Fig. 2 is a side elevation of the movement, its associated parts-the movement ring and dialbeing exhibited in section.

The watchL case which is adapted to receive a movement according to the present invention, may be of conventional size, style, etc., with ornamentationof any approved character. As shown in the drawing, it comprisesa case center A having oppositely disposed annular shoulders whereon may be secured a bezel B and case back C, this latter (part being also jointed to the case, if desire The bezel provides a mounting for a cr stal D in the usual manner.

T e case center is provided with a ring flange 3 which extends inwardly and toward the back C. Centrally of this flange lis an opening 4 of proper size to provide a seat for the movement E. One or more screws having heads 5 which engage with the rear face of the flange are adapted to be entered into the movement adjacent the periphery thereof so as to draw the movement in a rearward direction within the case.

Associated with the movement is a mountin ring 6 having on its inner face an an- .nu ar seat 7 for the accommodation of an 26.1925. serial No. 4,790.

annular bead or head 8-which is laterally extended from the periphery ofthe movement. This ring is itself provided with a rearwardly extending marginal wall 9 adapted to rest against the case center ring flange 3, adjacent the outer periphery. thereof. It thus follows that the mounting rings, which is seated within t-he case, provides for the movement a seat wherein it may be tightly secured through the instrumentality olf the screws 5.

On the forward face of the movement ring is an annular shoulder 10 whereon may be detachably secured the marginal flange 11 of a dial F which is thus held in place. Over the dial, and proximate thereto, are the usual hour and minute hands 12. The dial thus serves as the medium by which the movement and its mounting ring are connected in unitary relation.

The construction herein described is one which embodies essentially two units-the case, and the movement assembly. When the latter unit is Withdrawn, by first taking off the bezel and then removing the screws 5, it presents an appearance substantially as shown in Fig. 2. In like manner the initial mounting of such movement in the case requires merely that the parts be assembled as is shown in Fig. 2, the same being thenl positioned within the case and secured thereto by the screws 5.

The advantages which inhere in this invention are its simplicity, low cost, and ease of handling. Such a construction permits of the use of a spread dial when it is desired to mount within the case a movement of much smaller size. Manifest-ly no particular size of movement for any given case need be employed, it being necessary only that` a ring 6 of proper diameters be utilized. By providing in the case center a duplex seat wherein may be accommodated both the movement and its mounting ring, I am enabled to assemble cases and movements of varying sizes and dimensions.

I claim:

1. A watch case having an inwardly extending ring flange providing a duplex seat,

a movement seated within the flange, a ring 105 surrounding the movement formed to provide a seat therefor and itselff seated upon the case flange, and means whereby the movement and ring as a unit are held to their seats, substantially as described.

loo

2. A Watch oase in which is an inwardly extending ring flange forming a seat, a movement Wit-hin the oase and engaged with the seat. of the ilange thereof, other means removably Secured to the movement and engaging with the flange for holding the moven'ient against shifting in one direction, and still other means for preventing shifting of the movement in an opposite direction Consisting of a ring in which the movementis seated, the ring being formed with a. part which engages ivith the Case flange, substentiallvv as described.

3. ln a Watch ease, a movement having a mounting ring removabbT associated therewith, and a duplex seatwithin the oase for accommodating both the movement and the mounting ring thereof, there being means for securing the movement Within its seat, substantiall)v as described.

4A. In a Watch ease, the combination with a duplex Seat therein, of a movement and a mounting ring therefor engaged with the two seats of the ease, means whereby the movement ring may be disassociated from the movement, and means whereby the Inovement may be removably secured against witlulrawal from the ease, substantially as described.

ROY JOHN KPABBE. lVitvnesS:

Emiliani BANNlNG. 

